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Capital Assets (Tables)
3 Months Ended
Jan. 02, 2021
Capital Assets [Abstract]  
Property and Equipment
Property and equipment, net are as follows: 
January 2,
2021
October 3,
2020
Land and improvements$3,967 $3,963 
Buildings and improvements72,076 75,689 
Machinery and equipment231,802 228,155 
Total property and equipment307,845 307,807 
Less: Accumulated depreciation(217,599)(212,697)
Total property and equipment, net$90,246 $95,110 
Goodwill
Changes to the carrying amount of goodwill are as follows:  
Test & SimulationSensorsTotal
Balance, October 3, 2020 1
$48,840 $179,800 $228,640 
Currency translation1,948 35 1,983 
Balance, January 2, 2021$50,788 $179,835 $230,623 
1 Goodwill is net of impairment charges recorded in fiscal year 2020 of $53,344 in Test & Simulation and $188,174 in Sensors.
Intangible Assets
Intangible assets are as follows: 
 January 2, 2021
Gross Carrying AmountAccumulated AmortizationNet Carrying ValueWeighted
Average
Useful Life (in Years)
Software development costs 2
$55,441 $(16,365)$39,076 6.9
Technology and patents59,267 (20,360)38,907 14.7
Trademarks and trade names25,332 (5,229)20,103 17.6
Customer lists197,403 (48,347)149,056 15.7
Land-use rights1,201 (997)204 5.4
Other5,291 (3,804)1,487 1.7
Trade names44,100 — 44,100 Indefinite
Total intangible assets$388,035 $(95,102)$292,933 14.0
 October 3, 2020
Gross Carrying AmountAccumulated AmortizationNet Carrying ValueWeighted
Average
Useful Life (in Years)
Software development costs 2
$53,171 $(16,299)$36,872 6.9
Technology and patents58,575 (19,033)39,542 14.7
Trademarks and trade names24,688 (4,752)19,936 17.6
Customer lists196,251 (45,079)151,172 15.7
Land-use rights2,345 (1,223)1,122 26.1
Other5,070 (2,719)2,351 1.7
Trade names44,100 — 44,100 Indefinite
Total intangible assets$384,200 $(89,105)$295,095 14.1
2    The gross carrying amount of software development costs as of January 2, 2021 and October 3, 2020 includes $37,736 and $35,466, respectively, of software not yet available for general release to the public.
Amortization Expense
Amortization expense recognized related to finite-lived intangible assets is as follows:
Three Months Ended
January 2,
2021
December 28,
2019
Amortization expense$5,655 $4,785 
Estimated Future Amortization Expense on Finite-Lived Intangible Assets
Estimated future amortization expense related to finite-lived intangible assets is as follows: 
Amortization Expense
Remainder of 2021$16,611 
202221,738 
202321,636 
202421,398 
202521,210 
202620,942 
Thereafter125,298